Furnace.



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WJT/VESSES; JWENTOR ffarney No. 796,149. PATENTBD AUG. 1,119.95,

S.. J.4 RILEY.

FURNACE.

f APPLIOATION HLBD SEPT. 29. 1904..

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FURNACE.

Specification of Letters` l'atent.

'Patented Aug. 1, 1905.

Application filed September 29, 1904i Serial No. 226,478.

To a/ZZ whom t 'may concern:

Beit known that I, SAMUEL J. RILEY, a citizen of the United States, residing at Youngstown, in the county of Mahoning and State Yof Ohio, have invented new and useful Improvements in Furnaces, of which the following is a specification. Y

This invention relates to water-heating apparatus such as are ordinarily employed for domestic and analogous purposes, and has in View the provision of a simple and practical type of water-heater which may be operated in connection with gas, oil, or other fuel.

To this end the invention contemplates-a construction and arrangement of parts whereby a perfect circulation of the water is maintained and a maximum heating area provided to insure the utilization of all available heat units, while at the same time promoting the complete combustion of the gas or other fuel before the heat and other products of combustion are permitted to escape from the apparatus.

With these and many other objects in View,

which will more readily appear as the nature of the inventionl is better understood, the same consists in the novel construction, combination, and arrangement of parts, as hereinafter fully described, illustrated, and claimed.

The essential features of the invention involved in the novel formation of the annular water-chamber and the manner of assembling and constructing the parts directly associated therewithy are necessarily susceptible to structural change without departing from the invention; but the preferred embodiment of the invention is shown in the accompanying drawings, in which- Figure 1 is a side elevation of a waterheater constructed in accordance with the present invention. Fig. 2'is avertical longitudinal sectional View thereof. cross-sectional view on the line 3 3 of Fig. 2. Fig. 4 is a similar view on the line 4 4of Fig. 2.

Like reference-numerals designate corresponding parts in all figures of the drawings.

In carrying out the present invention the i same primarily includes an upright annular Water-chamber 1, which constitutes the en- Veloping jacket for the main interior combus-l tion-chamber 2 and which is inclosed between a pair of upright concentric tubular inclosing walls 3 and 4. These inclosing walls 3 and 4 are preferably in the form of cylinders arranged one within the other and of suitable length, according to the desired capacity of Fig. 3 isa the chamber 1 confined therebetween. This upright annular water-chamber 1 is designed to be entirely filled with water during the operation of` theheater, and the inner and outer vcylindrical inclosing walls 3 and 4are held in their separated relation through the medium of upper and lower header-rings 5 and 6, respectively. The latter header-'ring 6 constitutes what may be properlytermed a baseheader, inasmuch as it forms a base for the heater and not only sustains thereon the inclosing walls for the annular water-chamber, but also provides a support for other elements of the heater to be presently referred to.

The lower or base header-ring 6 is of a hollow or chambered formation, as indicated at 7, to provide a bottom continuation of the chamber between the walls 3 and 4, and at the inner and outer edges of the hollow or chambered part 7 the said base-ring is formed in the upper surface thereof with the annular seat-grooves 8 and 9, which respectively receive in close-fitting joints the lower beveled ends of the inner and outer inclosing Walls 3 and 4, respectively, thus providing at these. points water-tight connections between the said walls and the base header-ring. At this point it should be observed that the inner inclosing wall 3 of the upright water-chamber isv longer than the outer companion wall 4 and engages with the ring 6 a distance bepart of the said upper ring 5 in the vertical plane of the main annular water-chamber 1. This provides a direct line of communication between said chamber and the upper dome water-space 13, which is confined between the arched semispherical dome-top 14 'and the.

outside semispheri-cal dome-cover 15,arranged Aconcentric to the top 14'and in suitable spaced relation thereto to form a semispherical continuation of the main annular chamber 1.

The semispherical dome-top 14 is preferably formed integral with the upper header-ring and projects above the latter from the inner edge thereof to provide a closed pocket at thel top of the heater above the plane of the upper ring 5. The outside dome-cover 15, which is arranged in concentric spaced relation to the dome-top 14, is provided at the top thereof with a centrally-arranged water-outlet 16 and at its lower annular edge is rabbeted, as at 17, to match and interlock with a correspondingly-rabbeted face 18, formed on the upper side of the header-ring 5 outside of the plane of the circulating-d ucts 12 therethrough. This construction provides a firm water-tight connection between the outside dome-cover and the header-ring, and in addition to the elements enumerated the said dome-cover is also provided with an outstanding bolt-flange 19, receiving the upper bolt ends of a series of tie-rods 20, arranged in a circular series around the outside of the upright water-chamber and whose lower ends are engaged with an outstanding bolt-flange 21, provided on the lower or base header-ring 6. The said oppositely-arranged bolt-Hanges 19 and 21 also provide points of support upon which are fitted the upper and lower ends, respectively` of the outside casing jacket or shell 22, which is screwed or otherwise suitably fastened to the said flanges in close-fitting joints to form between the same and the outer chamber-inclosing wall 4 an annular heat-chamber 23, provided with a single main-outlet connection 24, preferably located near the lower end of the jacket 22, at one side of the heater, as may be plainly seen in Fig. 2 of the drawings.

The hollow or chambered part 7 of the lower header-ring 6 is enlarged, as at 25, to form a coupling-neck 26, to which is fitted a supply-valve casing 27, having the separate inlet and outlet ports 28 and 29, respectively, and accommodating therein a three-way valve 30, which under normal conditions provides straight-away communication from the inlet 28 to the water-cham ber.

Any suitable fuel may be utilized for developing heat within the combustionchamber 2 and for circulating the same from said combustion chamber through the heat escape ports 31 into the outer heat-chamber 23 for final escape through the main outlet 24, the said heat-escape ports 31 horizontally piercing the upper header-'ring alternately with the water-circulation ducts 12. However, it has been found preferable to utilize a plurality of gas-burners 32, which are arranged within the open lower end of the combustion-chaniber 2 and inside of the circle of the open basering 6. These gas-burners 32 may be of any suitable type, but are preferably of a form havingscreened tubes provided at their lower ends with the red ucing-plugs 33, whose contracted orifices are in communication with gas-ports 34, provided in the upper side of the hollow burner-base 35, suspended by brackets 36 from the lower side of the basering 6. This hollow burner-base 35 is provided with a single fuel-supply-pipe connueJ tion 3T, through which the gas enters the interior chamber 38 of the base and distributes itself through the ports 34 into the various burners.

From the construction described it will be apparent that the heat and other products of combustion pass up through the chamber 2 and are partially absorbed by the inner inclosing` wall 3 and impinging on the dometop 14 are pocketed and absorbed by the water in the dome unter-space 13. All excess heat, together with the remaining products of combustion, pass through the ports 3l of the upper header-ring into heat-chamber 23,

`.thus subjecting the outer inclosing wall 4 to the heat confined inside of the said chamber 225. This secures a maximum heating eiliciency.

For cleaning-out purposes the three-way valve 30 may be turned so as to bring` the outlet-port 29 in communication with the hollow part of the lower header-ring. lt is to be further observed that the outer casingjacket 22 is preferably of non -condueting sheet metal, and the inclosing walls 5% and 4 of the water-chamber 1 are preferably made of copper, while the tie-rods 20 are of iron. Hence by reason of the fact that the copper will expand more readily than the iron the tendency will be to tighten the lioints as the heater or furnace becomes hot.

From the foregoing it is thought that the operation, construction, and many advantages of the herein-described heater will be understood without further description, and it will be apparent that changes in the form, proportion, and minor details of construction may be resorted to without departing from the spirit or sacrilicing any of the advantages of the invention.

Having thus described the invention, what is claimed as new, and desired to be secured by Letters Patent, ismi 1. A water-heater comprising an upright annular water-chamber, upper and lower headerrings arranged at the ends of said chamber, the lower header-ring having` a supply connection therewith and the upper header-ring having water-circulation ducts and also haring heat-escape ports, a hollow dome in communication with said eater-ducts, and an outer heat-chan'iber in communication with said heat-escape ports.

2. A water-heater comprising a pair of tubular walls inclosing an annular water-chamber, upper and lower header-rings fitted upon the opposite ends of the walls, the lower header-ring being hollowed and having a valved water-supply connection therewith, and the upper header-ring having water-circulation ducts in one direction therethrough and heat-escape ports passing in a diiliereiit direction through the body thereof, and an outer casing inclosing` a heat-chamber about the annular water-chamber.

3. A water heater comprising a pair of spaced tubular walls inclosing an annular Water chamber, a lower header ring having spaced seats receiving the lower ends of said walls, and an upper header-ring also having spaced seats receiving the upper ends of said walls and provided with circulation-ducts in communication with the annular water-chamber and with heat-escape ports alternating with said ducts, said upper header-ring being furtherprovided with a dome-top eXtension, and an outside dome-cover spaced from the dome-top extension to provide a dome water-space and arranged for support on the upper header-ring, tie-bolt connections between said dome-cover and the lower header-ring, and an outer casing-jacket arranged outside of the series of bolts and forming a heat-chamber about the annular water-chamber.

4. A water-heater comprising an upright annular water-chamber, upper and lower headerrings at the ends of said chamber and vin communication therewith, a dome surmounting the upper header-ring and vhaving a dome water-space in communication with the annular chamber through the upper header-ring, and a three-way inlet and cleanout connection with the lower header-ring.

In testimony whereof I aflix my signature in presence of two subscribing witnesses.

SAMUEL J. RILEY. Y Witnesses:

CHARLES ZEIGLER, CHAs. T. OHL. 

